Curtain-roller.



No. 662,753. Patented Nov. 27, I900. B. F. BELL.

CURTAIN ROLLER (Application filed Aug. 13, 1960.

(No Model.) I 2 $heais-Sheat l.

' WITNESSES //v VENTOH 3. E- BeZZ 4 BYWQWQ A 7TORNE rs Patentedlovf 27,I900.

B. F. BELL CURTAIN ROLLER.

(Appl t nfildA g 13 1900 2 shms-shm 2.

(No Model.)

LEW.

ATTORNEYS WITNESSES:

Lruz a UNITE YATES a'rnNir which.

BENJAMIN FRANKLIN BELL, OF NASHVILLE, TENNESSEE, ASSIGNOR OF ONE-HALF TOJOSEPH WOLF, OF SAME PLAOE.

CURTAIN ROLLER.

SPECIFICATION forming part of Letters Patent No. 662,753, dated November27, 1906.

Application filed August 18, 1900. Serial No. 26,753. (No model.

.To all whom it may concern:

Be it known that I, BENJAMIN FRANKLIN BELL, residing at Nashville, inthe county of Davidson and State of Tennessee, have made certain new anduseful Improvements in Ourtain-Rollers, of which the following is aspecification.

Myinvention is an improvement in curtainrollers, and has for an objectto provide an improved construction by which to prevent the overwindingof the shade as well as the drawing of same too far down in the use ofthe curtain; and the invention consists in certain novel constructionsand combinations of parts, as Will be hereinafter described, and pointedout in the claims.

In the drawings, Figure 1 is a perspective view, and Fig. 2 alongitudinal section partly broken away,0f a curtain-roller providedwith myinvention. Fig. 3 isacross-sectional view on about line 3 3 ofFig. 2. Fig. 4c is a detail perspective View of the nut-holding sleeve.Fig. 5 is a detail perspective View of the nut. Fig. 6is a detailperspective viewof the stopring. Fig. 7 is a detail perspective view ofthe connecting-sleeve; and Fig. 8 is a longitudinal section, partlybroken away, showing a somewhat different construction Within the broadprinciples of my invention. Fig. 9 is a detail cross-section on aboutline 9 9 of Fig. 2. Figs. 10, 11, and 12 are cross-sections on aboutlines 10 1O, 11 11, and 12 12 of Fig. 8; and Fig. 13 is a plan viewofthe construction shown in Fig. 8.

The roller A may in general respects be of the ordinary construction,and the curtain or shade B may be secured thereto in any wellknown ordesired manner. The roller A is provided in one end with a longitudinalbore 0, in the inner end of which is secured a block D, to which isfixed the screw E, which extends, preferably, to a point beyond theouter end of the roller, as shown in Fig. 2, and is provided at such endwith a tenon c, which is adapted to fit in the bracket F, as shown inFigs. 1 and 2.

Upon the outer end of the rollerA, I secure a casing G, in tubular form,having its end plate G perforated at g to form a bearing for thenut-holding sleeve, the opposite end of the casing G being held upon therollerAby screws, as shown, or in other suitable manner. The casing G isprovided at g with slots in which operate the lugs of the stop-ring, asshown in Fig. 2.

An annular cap-plate H is secured upon the end of the roller A withinthe casing G and supports the pawls I, which maybe of the ordinaryconstruction and operate at their points within the slot 7' of thenut-holding sleeve J, as shown in Fig. 3. The cap-plate H also supportsa pin or stud K, preferably forming the extensions of one of the pivotsof the pawl andarranged to strike against the radially-projectingportion L of the nut L to stop the downward movement of the curtain orshade in the operation of the device.

The nut-holding sleeve J is shown in detail in Fig. 4E and is supported,as best shown in Fig. 2, at its outer end in the bearing g of the endplate G of the casing G and at its inner end in a bearing h in thecap-plate H.

The sleeve J extends inwardly beyond the cap-plate H and supports onsuch extension the connecting-sleeve M, which is provided at its innerend with returned portions, forming rings M to hold the outerend of thespring N, and also provided with inwardly-projecting lugs M which enteropenings M in the sleeve J,and thus secure the connecting-sleeve uponthe nut-holding sleeve, as will be understood from Figs. 2, 4, and 7.end of the spring N is secured to the block D, as shown in Fig. 2.

The sleeve J has a longitudinal slot j and is provided at its outer endwith the inwardlyturned perforated ears J and J which form bearings forthe outer end of the screw-shaft E, and it also has at its outer end theoutwardly-turned arms J whose ends J 4 are arranged to engage thebracket F and prevent the rotation of the sleeve J in either direction.

The nut L fits within the sleeve J and is threaded on the screw E so theturning of the latter will feed the nut back and forth in the sleeve J,and such nut is provided with a radially-projecting arm or portion L,which projects through the slot j beyond the sleeve J in position forengagement by the pin K when such arm L is adjusted into the path of theThe opposite pin K in the operation of the invention. The pin K, asbefore suggested, stops the movement of the roller in one direction. Tostop the movement of the roller in the opposite direction, which in theconstruction shown is the upward movement of the shade to preventoverwinding, Iprovide the stop-ring 0. (Shown in detail in Fig. 6.) Thisring 0'' is provided with the lugs O, which project through the slots gin the casingGrand operate to hold the ring 0 to the casing and yetpermit it to be adjusted in the casing in the direction of length of thelatter. The ring 0 also has an inwardly-projecting lug or portion 0which projects with such relation to the lug L of the nut L that it willstrike suchlug when the latter is moved into the path of the projectionO by the operation of the screw E at the upper end or part of the upwardmovement of the curtain. It will be noticed that in the operation of myinvention the curtain is-stopped by the striking of some portionattached to the revolving roller against a portion of the nut as thestop portion on the roller revolves. By this means I avoid anyjamming ofthe nut upon the threads of the shaft, so the nut will not become boundupon the shaft or screw in such manner as to prevent or hinder theraising or lowering oi'the curtain from its stopped position.

By arranging the stop-ring O for adjustment within the casing G suchring may be set to stop the roller at different points, so the height towhich the curtain can be raised may be conveniently regulated.

Manifestly the invention can be used as a combination with the springshade-roller, as shown in Fig. 2 and before described, or theimprovements can be attached to the opposite end of the roller from thatcontaining the spring and be used as a separate attachment.

In Figs. 8 and 10 to 13, inclusive, I showa construction which can beused on the largest or smallest sizes of rollers and which, like thatshown in Fig. 2, can be used as a-combination with oron the opposite endof the roller from the roller-actuating spring.

In the construction shown in Fig. 2 the stop-ring O is movablelongitudinally in the casing Gand is held from turning. In Fig. 8 thecasing 1 is provided with longitudinal slots 2 and 3, the slot 2being-serrated at one edge and having at its other edge an inturnedfiange'i. The flange a is engaged by the slotted end 5 of the nut 6,which is threaded on the screw-shank 7, so said nut 6 will be caused totravel in and out as the roller is'turned in opposite directions on saidscrew-shank.

The stop 9 in Fig. 8 is also movable within the casing and preferablyhas a port-ion operating in the longitudinal slot of such casing, as isalso the case with the construction shown in Fig. 2. Thestop 9 includesa center block 10, keyed on and movable along the'screw 7, and has acircumferential groove 11, in=which is held the stop-frame 12, havingtheradiallyopposite projections 13 and 14, operating in any desiredpoint.

the slots 2 and 3, the projection 13 having two arms which spring apartand cause one of them to engage in the serrations at one side of slot 2,as will be understood from Figs. 8, 12, and 13. It will be noticed thatthe frame 12 is so held in the groove 11 of the block 10 that it canturn on said block as on an axis. By this construction the stop 9 can beadjusted within the casing to stop the roller at In both constructionsdescribed the nut will be fed longitudinally along the screw shaft-inoneinstance, Fig. 1, by the turning of the shaftthrough its connectionwith the roller and in the other case, Fig. 8, by the turning of the nuton the screw-shaft, so the raising and lowering of the roller willadjust the nut to position toengage the projections whiclr are arrangedin the patlrof the un t to stop the same",- anjd thus stop the tn rulingof the roller.

Having thus described my in vention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a curtain-roller the combination substantially as described, ofthe roller, the capplate at the end thereof, and provided centrally withan opening or hearing, the pa-wls carried by said oap plate,theprojecting pin or portion arranged to revolve or travel with theroller as the latter is turned, the casing provided with longitudinalslots having one end fitting and held upon the roller and its other endprovided with a cap-plate having a central openingor bearing,thenut-holding sleeve having a longitudinal slot and fitting within thecentral opening in. the capplate' and in the end plate of the casing andprovided at its outer end with anarnr toabut the bracket and limit theturning of the sleeve, said sleeve being also provided at its outer endwith inwardly-projecting earsperforated to receive the end ofthescrew-shaft, the screw-shaft suitably connected at its inner end withthe roller and extended within the nut-holdingsleeve, the nut in saidsleeve and threaded on the screw-shaft and provided with an arm orportion projecting through the slot in said sleeve and beyond thelatter, the stop-ring fitted within the casing and havingoutwardly-projecting portions which operate in the slots of the casingand an inwardlyprojecting portion arranged to engagethe'lug on the nutwhen the latter is adjusted to set its lug into the path of saidprojection, the connecting-sleeve held upon the inner end of thenut-holding-sleeve, and the roller-actuating spring secured at one endto the roller and at its other end to the connectings-leeve allsubstantially as set forth.

2. The combination of the curtain-roller, the screw-shaft held to andturning with the roller, the nut-holding sleeve heldfrom turning withthe roller and provided with a longitudinalslot andfittingover thescrew-shaft, and-the nut threaded on the screw-shaft within said sleeveand having a lug or arm extend- IIO ing through the slot in the sleevein position l limit the turning of the sleeve substantially forengagement by projections or portions carried by the roller, and thesaid projections or portions.

3. The combination of the curtain-roller, the screw-shaft turning withthe roller, aprojection or portion moving with the roller as the latteris turned, a nut threaded on the screw shaft and having a projecting lugor portion arranged for engagement by the projection or portion carriedby the roller, and means for holding the said nut from turning with thescrew substantially as set forth.

4. The combination substantially as described of the roller, the casingsecured on the end thereof, the stopring held in and to said casing andadjustable therein in the direction of length of the casing and providedwith the stop portion to engage the nut, the nut and means for adjustingthe nut into and out of the path of the projection on the stopringsubstantially as set forth.

5. The combination of the curtain-roller provided with a screw-shaft andwith means for engagement with a projection on a nut operating on saidshaft, the nut having the projection, the sleeve engaged with said nut,and means carried by the sleeve for engagement with the curtain-bracketwhereby to as set forth.

6. The combination of the roller having a cap-plate provided with acentral opening, the nu t-holding sleeve fitting at its inner end insaid opening, the casing secured to the roller and supporting the outerend of said sleeve, the nut operating in said sleeve, the screw carriedby the roller and engaging said nut, and project-ions or portions on theeasing for engagement by the projection of the nut substantially as setforth.

7. In a curtain-roller the combination of the screw-shaft and the nuttraveling thereon, the casing having a longitudinal slot, and thestop-ring having a portion operating in the slot of the casingsubstantially as set forth.

8. The improveinen t in curtain-rollers comprising the screw, the nutthereon, the easing fitting over the screw and nut and. havingdiametrically opposite longitudinally-extended slots, and the stop-ringhaving portions operating in the opposite slots of the casingsubstantially as set forth.

BENJAMIN FRANKLIN BELL.

Witnesses:

ToM D. PRICE, Mosns RUBEN.

